Leopold Bric

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Braintree, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Phase locked loop control system
- Patent number 4,272,712
- Issue date Jun 9, 1981
- SIGMA Instruments, Inc.
- Thomas E. Beling
- G05 - CONTROLLING REGULATING
Information Patent Grant
Synchronous motor drive
- Patent number 4,271,384
- Issue date Jun 2, 1981
- SIGMA Instruments, Inc.
- Thomas E. Beling
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL