It hereby certified that ror appears the printed speciHeat ion the above
numbered patent requiring correction follows: Page after line 57, strike out
the form ula and insert instead
E
- ***)»■
and the said Letters Patent should read witli this correction therein that
the same may conform the record the ease the Patent Office.
Signed and sealed this 20th dav March, 1928.
Gmilled January 1928.
[ OORE,
Actiruj Vomrnitssioner Patents. to
N .
C tif tio .1,655,114.
