Invention Grant
- Patent Title: Plumbing system employing vacuum breakers
- Patent Title (中): 管道系统采用真空断路器
-
Application No.: US70309333Application Date: 1933-12-19
-
Publication No.: US2087049APublication Date: 1937-07-13
- Inventor: SHANLEY WILLIAM C
- Applicant: IMP BRASS MFG CO
- Assignee: Imp Brass Mfg Co
- Current Assignee: Imp Brass Mfg Co
- Priority: US70309333 1933-12-19
- Main IPC: E03C1/10
- IPC: E03C1/10
Information query
