1. Patentansprak: Tatningsring av plat, sdrskilt for tabling av fingeylindrar, kanneteeknad av oft eller flera i platen inpressade eller valsade veek, vilka omgiva do fOr tabling avsedda kanterna i oavbruten foljd, °eh eventuellt Oro fOrenade tvars Over for aft bilda tithing runt om i ringen upptagna hal. (Mit-till en rilning.) Stockholm 1920. P. A. Norstedt &1. Patent claim: Sealing ring of plate, especially for tabling of finge cylinders, jug drawing of often or several wicks pressed or rolled in the plate, which surround the edges intended for tabbing in uninterrupted sequence, and possibly worrying about slippery in the ring. (Mit-till en rilning.) Stockholm 1920. P. A. Norstedt &
An improved generator for obtaining acetylene gas, according to the "Döbereiner" principle, at hydrostatic pressure, with a connecting pipe between the production chamber and the hood.