case of drawings lodged with a complete specification after one or more
provisional specifications, the numbers and years of the applications;
(b)
in the right-hand top corner the number of sheets of drawings
sent and the consecutive number of each sheet, and the words "original"
or "true copy", as the case may require;
(c)
in the right-hand bottom corner the signature of the applicant or
his agent.
(2) The title of the invention shall not appear on the drawings.
16. (1) No descriptive matter shall appear on constructional drawings, Descriptive
but drawings in the nature of flow sheets may bear descriptive matter to matter
show the materials used and the chemical or other reactions or
treatments effected in carrying out the invention.
(2) Drawings showing a number of instruments or units of apparatus
and their interconnections, either mechanical or electrical, where each
such instrument or unit is shown only symbolically, may bear such
descriptive matter as is necessary to identify the instruments or units or
their interconnections.
(3) Such descriptive matter shall be in black or very dark markings on
both the original and the true copy drawings and on the latter the letters
shall be not less than 1/4 inch in height.
(4) No drawing or sketch, other than a graphic chemical formula or a
mathematical formula, symbol or equation, shall appear in the verbal
part of the specification and if such a formula, symbol or equation is
used therein a copy thereof, prepared in the same manner as original
drawings, except that it may be a hand-made drawing on tracing-cloth,
shall be furnished if the Registrar so directs.
17. Drawings shall be delivered at the Office free from folds, breaks or Drawings not to
creases which would render them unsuitable for reproduction by
be creased
photography.
18.
If an applicant desires to adopt the drawings lodged with his
Drawings