In 1944, Harvey Radio Labs owned by Mr. Lyman started a new company named Harvey of Cambridge as seen below. Both companies coexisted in Cambridge, MA. using the same addresses.

Below is also the first ad I found by Harvey-Wells in the ARRL handbook of this year...

Ampli-Strip

Name

206-PA power supply

Marine-10

Harvey-Wells XM-25, T-100-TC, TMC ground and broadcast transmitters

Harvey-Wells AM-1415 audio amplifier

Info from NJ7P Bill Beechs military list

BR Transponder, Identification, Friend or foe, Shipboard, 680-720 MHz, 5 W, 12 VDC, Harvey Radio Labs, 1944

BR-1 Same as BR except 115 VAC 60 Hz, Harvey Radio Labs, 1944.

BT Transponder, Identification, Friend or foe, Shipboard, 680-720 MHz, 5 W, 12 VDC, Similar to BR except install, Harvey Radio Labs, 1944.

More models found at the military page...