PIPEMASTERMark wording
Undated
PIPEMASTER
First recorded use: 01/27/1932; Filed: 06/13/1955; Issued: 02/28/1956
Serial 689,371; Published 12/06/1955
Other maker marks
2 marks.
Undated
First recorded use: 01/27/1932; Filed: 06/13/1955; Issued: 02/28/1956
Serial 689,371; Published 12/06/1955
Undated
First recorded use: 01/27/1932; Filed: 04/19/1954; Issued: 05/24/1955
Serial 664,743; Published 03/08/1955