Mr. Wajcman started Lawrence Electro-sound with Bill Lawrence(Willi Lorenz Stich) in Germany during the mid sixties. In 1982 Mr. Wajcman again became assosiacted with guitar pickups made or designed by Bill Lawrence(Willi Lorenz Stich).

Has been making and selling pickups doing business as "Bill Lawrence Products" and or "Bill Lawrence Guitar Pickups" from 1984 to present.

Mr. Wajcman holds the (tm) for BIll Lawrence .  Electric guitar pickups made by Jzchak Wajcman DBA Bill Lawrence Products/Bill Lawrence guitar pickups/Bill Lawrence USA are trademark "Bill Lawrence" pickups.

Disclaimer as it currently appears on the billlawrenceusa.com web site "Jzchak Wajcman DBA Bill Lawrence Products/Bill Lawrence guitar pickups/Bill Lawrence USA is not associated with the designer "Bill Lawrence" since 1984"