Neutrodyne Pty. Ltd.
440 Little Collins Street, Melbourne, Victoria. (Registered address)

The Hazeltine Neutrodyne principle was eagerly employed by Australian manufactures from 1927.

This company was formed to administer the Hazeltine Patent licenses in Australia.

During a visit to the U.S. in late 1927 Louis Abrahams of Louis Coen Wireless successfully negotiated with the Hazeltine Corporation of America to acquire interests in patents owned by them and to control and monitor the Hazeltine patents in Australia. In 1928 company was formed, Neutrodyne Pty, Ltd., registered office, 440 Little Collins St, Melbourne with H. W. Lynch & G. Wright named as subscribers to the memorandum. [1] (Geo Wright, charted accountant of 440 Little Collins St was the auditor for Abrahams & Warner's various business concerns)

This company was not a part of the license agreement set up by the Federal Government and AWA in 1927. See Australian Radio Technical Services and Patents Co. Ltd. (ARTS&P)

With Abrahams & Warner being the owners of Neutrodyne Pty, Ltd., it gave their companies Louis Coen Wireless & later Radio Corporation Pty., Ltd., a very competitive advantage in their early days of radio manufacturing. The company also offered a licence to Australian manufactures and it was accepted by some and refused by others, whereupon they issued writs against some manufacturers. Namely New Systems Telephones Pty. Ltd.,  Airzone (1931) Ltd., AG Healing Ltd., and Emmco.[2]

They published a list of manufactures who had obtained licenses for Hazeltine patents in January 1934.[3]

In April 1934 representatives of radio patent owners including Neutrodyne Pty. Ltd., assembled in Sydney to discuss the possibility of forming a joint company to collect royalties in uniform method from manufactures of radio sets. This resulted in The Radio Royalty Pool Plan.[4]

On April 4, 1934 Hazeltine joined the ARTS&P and by April 24 the group consisted of 18 companies.[5].

In 1939 Electronic Industries Ltd. (E.I.L.) a holding company, consolidated all of Abrahams & Warners business concerns under the one organisation. Neutrodyne Pty. Ltd., remained an active subsidiary under E.I.L.

In 1970 E.I.L. including its subsidiaries was taken over by Philips Australia.

Neutrodyne Pty. Ltd.  continued as a subsidiary of Philips Industries Holdings Ltd. [7]

The company was and was liquidated in May 1990.[6]

[1] Daily Commercial News and Shipping List (NSW) Jun 16, 1928, Page 4.
[2] The Argus (Vic.) Feb 10, 1934, Page 24.
[3] The Sun (NSW) Jan 29, 1934, Page 6.
[4] The Herald (Vic.) Apr 3, 1934, Page 8.
[5] The Sydney Morning Herald (NSW) Apr 24, 1934, page 8.
[6] Commonwealth of Australia Gazette. Business (National)  May 29, 1990, Page 1447.
[7] Philips company document: Company structure 1981.