Norman J. Borgo

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

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
Sewer augering apparatus
- Patent number 5,029,356
- Issue date Jul 9, 1991
- General Wire Spring Company
- Lee Silverman
- E03 - WATER SUPPLY SEWERAGE