...compliance specifications, shall be served upon all parties either personally or by registered or certified mail or by telegraph, or by leaving a copy thereof...place of business of the person required to be served. (b) Service of final orders and decisions. Final orders of the Board in unfair labor practice cases...

...subpoenas. Subpoenas shall be served upon the recipient either personally or by registered or certified mail or by telegraph, or by leaving a copy thereof...place of business of the person required to be served. (d) Service of other documents. Other documents may be served by the Agency by any of the foregoing...

...judges' decisions shall be served upon all parties either personally or by registered or certified mail or by telegraph, or by leaving a copy thereof...place of business of the person required to be served. (c) Service of subpoenas. Subpoenas shall be served upon the recipient either personally or by registered...

...of service. In the case of personal service, or delivery to a principal office or place of business, the verified return by the individual so serving the...manner of such service, shall be proof of the same. In the case of service by mail or telegraph, the return post office receipt or telegraph receipt therefor...

...of service. In the case of personal service, or delivery to a principal office or place of business, the verified return by the individual so serving the...manner of such service, shall be proof of the same. In the case of service by mail or telegraph, the return post office receipt or telegraph receipt therefor...

...Complaints, orders, and other process and papers of the Secretary or his duly authorized agent, may be served either personally or by registered mail or by telegraph...forth the manner of such service shall be proof of the samp, and the return post-office receipt or telegraph receipt therefor when registered and mailed or...

...Complaints, orders, and other process and papers of the Board, its member, agent, or agency, may be served either personally or by registered mail or by telegraph...service shall be proof of the same, and the return post office receipt or telegraph receipt therefor when registered and mailed or telegraphed as aforesaid...

...Board, its member, agent, or agency, either personally or by registered mail, return receipt requested, or by leaving a copy thereof at the principal office...business of the person required to be served. The return post office receipt, when service is by registered mail, shall be proof of service of the same....

...Complaints, orders, and other process and papers of the Board, its member, agent, or agency, may be served either personally or by registered mail or by telegraph...required to be served. The verified return by the individaul so serving the same petting forth the manner of such service shall be proof of the same,...

...papers of the Board, its member, agent, or agency, may be served either personally or by registered mall or by telegraph or by leaving a copy thereof at the...required to be served. The verified return by the individaul so serving the same setting forth the manner of such service shall be proof of the same,...