Items
recipient is exactly
Electrical Testing Laboratories
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[E1918AM], Letter from William Henry Meadowcroft to Electrical Testing Laboratories, Clayton Halsey Sharp, May 6th, 1919
1919-05-06 -
[E1922AD], Letter from William Henry Meadowcroft to Electrical Testing Laboratories, William F Little, January 16th, 1919
1919-01-16 -
[MF35AQ], Letter from William Henry Meadowcroft to Electrical Testing Laboratories, Preston Strong Millar, May 7th, 1918
1918-05-07