Leo J. Hubbard

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Somerset, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Perforated web feeding apparatus
- Patent number 4,714,185
- Issue date Dec 22, 1987
- Precision Handling Devices, Inc.
- Leo J. Hubbard
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Tractor apparatus
- Patent number 4,457,463
- Issue date Jul 3, 1984
- P.H.D. of Puerto Rico, Inc.
- Leo J. Hubbard
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Web feed tractor
- Patent number 4,421,261
- Issue date Dec 20, 1983
- Precision Handling Devices, Inc.
- Leo J. Hubbard
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Document feed mechanism
- Patent number 4,345,708
- Issue date Aug 24, 1982
- P.H.D. of Puerto Rico, Inc.
- Leo J. Hubbard
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Document tractor
- Patent number 4,199,091
- Issue date Apr 22, 1980
- Precision Handling Devices, Inc.
- Leo J. Hubbard
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Clamping devices for document tractors
- Patent number 4,129,239
- Issue date Dec 12, 1978
- Precision Handling Devices, Inc.
- Leo J. Hubbard
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL