DAVID A SHAFFER
Broker in Henderson, NV

License number
Nevada B.0011418.LLC
Issued Date
Oct 16, 1987
Expiration Date
Feb 28, 2018
Category
Real Estate Appraisers
Type
Broker
License number
Nevada PM.0163488.BKR
Issued Date
Aug 10, 2007
Expiration Date
Feb 28, 2018
Category
Real Estate Appraisers
Type
Broker
License number
Nevada BS.0011418
Issued Date
Jan 4, 1974
Expiration Date
Feb 29, 2016
Category
Real Estate Appraisers
Type
Broker
License number
Nevada B.0034679.INDV
Issued Date
Nov 10, 1994
Expiration Date
Nov 30, 1996
Category
Real Estate Appraisers
Type
Broker
Address
Address
Henderson, NV 89014

Professional information

David Shaffer Photo 1

Method And System For Measuring The Position Of Lightning Strokes

US Patent:
5235341, Aug 10, 1993
Filed:
Apr 16, 1992
Appl. No.:
7/868798
Inventors:
John E. Effland - Gaithersburg MD
John M. Gipson - Silver Spring MD
David B. Shaffer - Henderson NV
John C. Webber - Herndon VA
International Classification:
G01S 1300, G01S 302
US Classification:
342460
Abstract:
A method and system for unambiguous pre-detection real time measurement of lightning strokes.