{HEAD ~ a mixing bowl} comprising a vessel, {TAIL ~ a cover} for said vessel, a conical part in said cover, means for removably locking said cover on the vessel, 
{ HEAD ~ a mixing bowl } comprising a vessel , { TAIL ~ a cover } for said vessel , a conical part in said cover , means for removably locking said cover on the vessel ,
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH