US PATENT SUBCLASS 400 / 589
.~.~ With locking or interlocking mechanism (e.g., line lock, etc.)

Current as of: June, 1999
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400 /   HD   TYPEWRITING MACHINES

578  DF  SHEET OR WEB (E.G., RECORD-MEDIUM FEEDING MECHANISM) {13}
586  DF  .~ Including feed of tally strip record-medium (e.g., plural tally strips) {8}
589.~.~ With locking or interlocking mechanism (e.g., line lock, etc.)

DEFINITION

Classification: 400/589

With locking or interlocking mechanism (e.g., line lock, etc.):

(under subclass 586) Subject matter wherein a typewriter is provided with locking mechanism or with interlocking mechanism.

(1) Note. The terms "locking" mechanism and "interlocking" mechanism are defined and discussed in the definition and notes of subclass 663 below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

663+, for other locking or interlocking mechanism.