Arthur A. Silverman

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Drain cleaning apparatus with remotely adjustable feed control
- Patent number 6,637,064
- Issue date Oct 28, 2003
- Lee H. Silverman
- B08 - CLEANING
Information Patent Grant
Drain cleaning apparatus having remote power feed
- Patent number 6,470,525
- Issue date Oct 29, 2002
- Arthur A. Silverman
- B08 - CLEANING
Information Patent Grant
Drain cleaning apparatus with feed control
- Patent number 6,343,398
- Issue date Feb 5, 2002
- General Wire Spring Company
- Arthur A. Silverman
- B08 - CLEANING
Information Patent Grant
Power driven drain cleaner with safety overload clutch
- Patent number 4,104,757
- Issue date Aug 8, 1978
- Arthur A. Silverman
- E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

Information Patent Application
Drain cleaning apparatus with remotely adjustable feed control
- Publication number 20020083538
- Publication date Jul 4, 2002
- Lee H. Silverman
- B08 - CLEANING