Calling @forciori and friends!!!!
Anyone know what's up with the "-78" that seems to be stamped after the patent number on this pipe?
The rest of the nomenclature (including the shape/tube size not in the picture) seem to fit what I've researched and is quite explicable, but I can't figure out this -78 at all.
Anyone have any idea? Thanks for any help!
Anyone know what's up with the "-78" that seems to be stamped after the patent number on this pipe?
The rest of the nomenclature (including the shape/tube size not in the picture) seem to fit what I've researched and is quite explicable, but I can't figure out this -78 at all.
Anyone have any idea? Thanks for any help!