Invention Grant
- Patent Title: Window-cleaning device
-
Application No.: US27691228Application Date: 1928-05-11
-
Publication No.: US1727277APublication Date: 1929-09-03
- Inventor: DIES CHARLES A
- Applicant: DIES CHARLES A
- Assignee: Charles A Dies
- Current Assignee: Charles A Dies
- Priority: US27691228 1928-05-11
- Main IPC: A47L1/08
- IPC: A47L1/08
Information query
