SZ/OEMU/16/1/5 - Noise Excluding Properties of Ear Plugs, [undated]

Reference code

SZ/OEMU/16/1/5

Level of description

Item

Title

Noise Excluding Properties of Ear Plugs, [undated]

Date/s

[1940?]

Quantity & Format

1 leaf

Scope and content

Reports the results of tests on four different types of ear plug.

SZ/OEMU/16/1/4

Covering letter attached [SZ/OEMU/16/1/4].

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